Akai iMPC for iPhone, £1.99/$2.99

As with the iPad version of iMPC, which we reviewed earlier in the year, the app is far from perfect. This iPhone version in particular is fiddly and can be fairly tricky to work with.

It does borrow some great features from its real-life counterpart though, such as the classic quantise and swing controls. The real highlight, however, is the built-in sound library, which features around 600 great-sounding and highly usable samples.